Over the last week I have lost 28 of my birds from 6 week old BCM to 1 year old barred rocks All the small bireds are gone nothing but feathers. The older birds are being killed and then drug to the fence and what ever it is can't get them out. the bottom of my fence is buried and I can't find any place that it appears to be broken to allow something in. the fence is 6 ft tall. My birds don't roost in the coop only outside in the warm months. Do you think if i am able to get them in the coop and lock them up that it will discourge whatever is after them and them let them out later they would be safe. I have no idea what it is. I set a live trap last night and caugh a cat. Any suggestions?